Home / 19,813.63-27,342.06-11,855.38

Finding the Fourth Proportional to 19,813.63, 27,342.06 and 11,855.38

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Solution

The fourth proportional to 19,813.63, 27,342.06 and 11,855.38 is: 16,359.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.63 : 27,342.06 = 11,855.38 : x
  2. Step 2: Convert to fraction form
    19,813.63/27,342.06 = 11,855.38/x
  3. Step 3: Cross multiply
    19,813.63x = 27,342.06 × 11,855.38
  4. Step 4: Simplify right side
    19,813.63x = 324,150,511.28
  5. Step 5: Solve for x
    x = 324,150,511.28/19,813.63
  6. Step 6: Final answer
    x = 16,359.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.